Coupling of Oxy- and Deoxyhemoglobin concentrations with EEG rhythms during motor task

Figures

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  Figure 1. ERD/ERS distributions (left panels) and concentration changes in time for HbO (red) and HbR (blue) - (right panels) averaged over subjects. Upper pictures correspond to the most reactive electrode - C3 and corresponding optode; lower pictures to the electrode located in the right hemisphere - Cp2 and corresponding optode. Movement period from 0 to 20 s. At the very left of ERD/ERS panels - spectra.

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  Figure 2. Topographic distribution of desynchronisation in alpha and beta bands (upper pictures) and a decrease in HbR and an increase in HbO (lower pictures) quantified by their z-scores. Blue colors illustrate a decrease whereas red and yellow colors represent an increase.

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  Figure 3. The time evolutions of HbO concentration (red), HbR concentration (blue) (upper picture), alpha ERD/ERS (black), beta ERD/ERS (green) (lower picture) for the most reactive electrode (C3) and the corresponding optode averaged over subjects. Movement period from 0 to 20 s.

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  Figure 4. Time scheme of the protocol with indication of no movement period (REST) and movement period (MOV).

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  Figure 5. Location pattern of EEG electrodes and NIRS optodes.